How many moles are represented by 118 grams of cobalt? cobalt has an atomic mass of 58.93amu

Pepsin is an enzyme involved in the process of digestion. Its molar mass is about 3.50 * 104 g/mol. What is the osmotic pressure in mm Hg at 30°C of a 0.500-g sample of pepsin in 60.0 mL of an aqueous solution?

A gas with a volume of 4.0 L at 90.0 kPa expands until the pressure drops to 20.0 kPa. What is its new volume if the temperature doesn't change?

Identify the oxidizing agent in the balanced net ionic reaction below: h2o (l) + nh3 (g) → nh4 + (aq) + oh - (aq)

The solubility of co2 in water and the temperateture of the aquaous solution

According to its periodic table entry, how many electrons does nickel have in its valence level? 2 8 16 28

14. What steps should you take to keep parents and the public from viewing your personal information on social networks?

Match the factors which affect the rate of dissolving/dissociation/diffusion.

How would the equilibrium of an exothermic reaction at 25°c be affected if the temperature of the system were reduced? (hint: apply le chatelier's principle) ?

Which is the most practical argument for the continued funding of space exploration? a) Space exploration will one day show whether life exists on other planets in star systems similar to ours.

33 protons 36 electrons 45 neutrons